Mold for building-blocks.



T. R. WiLLlAMS.

MOLD FOR BUILDING BLOCKS, APPLICATION FILED JUNE 26. IQ'IB.

Patented Sept. 3, 1918.

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Maw/25 A? /LL MS T. R. WILLIAMS.

MOLD FOR BUILDING BLOCKS. APPLICATIQ N FILED JUNE 26. l9l6.

Patented Sept. 1918.

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T. R. WILUAMS. MOL'D FOB BUILDING BLOCKS. "APPLECATlON man IUNEZB'. ms.

Patented Sept. 3, 1918.

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THOMAS it. WILLIAMS, OF Youlves'rown, OHIO.

MOLD FOR, BUILDING-BLOCKS.

manure.

Specification of Letters Patent.

Patented Sept. 3, 1918.-

Application filed Julia 2 1918. Serial No. 242,064.

To all whom it may concern:

Be it known that I, TrioMAs R. VILLiAM,

a citizen of theUnited States, residing at Youngstown, in the county of Mahoning and State of Ohio, have invented. certain new and useful lniproveiiient in Molds for BuildingBlocks, of which thefollo wing is a specification. j V

This invention relates to the geneiial subeC'tbf a inoldin a' aratus and has Jarticiilar reference to adevice for forming building blocks of difierent shape.

To this ei1d,'the invention contemplates a mold naming; nove with p rtions whic may he r'e'adi ly assembled in any one of seveifal difiereiit positions to provide a differeiitly shaped interior mold box, whereby a variety of matching blocks may he formed from the same mold. That is to say it is proposed to so construct the mold that the blocks iiiad'e therein will beef the same general dimensions with coinp'leineiital match ing and portions which will readily interlock-t0 provide a Hat wall surface, finishing.

inventionis to 'jrovide a moldstructure which" is simple, cheap and etfi'c'ient, readily assembled iiani 'oulate'd to form the differei'itly, shaped blocks, 7

NVith the above and other objects in view whichwill more readily appear as the nature of the invention is better understood, the

consists in" the novel construction and arrangei'n'ent "of; parts hereinaftei'niore fully described, illustrated and claimed.

A preferre'cl antl practicaleihhodiment of the invention is shown in the accompanying drawings, in which:- V I Figure l is a plan view of my improved molding apparatus. 7 p i Fig; 2 is an'end View thereof.

Fig. 3 is a side elevation thereof.

Fig. 4 is a top plan View, similar toIFig. 1, but showing one of the end walls of the mold reversed to provide a substantially T- shaped block. 5

Fig 5 is another top plan view showing a further arrangement of the end wall of the mold to provide a substantially L -shaped block. I 7

Figs; 6',- 7 and 8 are,resp'ectivelytopplan views of the blocks foriiied by" the mold structure shown in Figs. 1, 4 and 5 of the drawings:

- a wall, and Fig. 8 showsa block whichin'ay Fig. 9 is a top plan view of an integral mold box structure for forming the type of block shown in Fig. 6, which block isjalso formed hythe structure shown in Fig. 1.

Fig. 10 is a sideelevation partly insectlon, of the structure shown in F ig. 9. Fig. 1 l is an end elevation thereof.

Fig. 12 is a transverse sectional View on the line l212' of Fig. 9. I

Similar reference characters designate; corresponding parts throughout the several figures of the drawings.

As previously indicated, a primary object of the present invention is to providea sin gle nold device which is capable offorming differently shapedinterlocking blocks which may be readily utilized-to meet all of the requirements of building a wall or like structure. Also, to provide a construction which may be adjusted and arranged to make a set of interlocking blocks adapted to be used to form the flat face of a wall, av corner thereof, or a finishing edge for a window, opening, such for instanceas shown in Figs. 6, 7 and 8 of the drawings, wherein Fig. 6' shows a block or tile generally utilized in forming the face of the wall, while Fig. 7 showsv agblock. which may be conveniently employed in makinga right angle corner of be used inproviding a finishing edge for a window opening, ,j

Refer rin nore particularly to the molding apparatusintended to form the blocks having the characteristics: above set forth," it

will loe ohservedf from Fig; 1 of the drawings that the mold essentially consists of the relativelylong fiat sidewall members 1 and 2, and the .specialend wall sections 4: and 5 which are adapted to he shifted .or reversed to form the difiei'ent end portions of the bloclrs. As will he observed from the draw,-

' ings, the end section 4 consists ofa wall having" a flat face 7 at one side thereof while theoPp sit side is provided with apreferrectangular offset core member -8 whose height is commensurate with that of the side wall 1, and is adapted to oecupya corner of the interior space of the mold when the side walls I and ,2 and end sections 4: and 5 are in assembled relatio n, V

'For the purpose of maintaining the side walls I; 2 in position with respect to theeiid sadness & and,5,tl 1e latter he m. vi'de'd with the upstandingv ears 9 for receivscrews 12.

The end section 5 is similar in its general structure to the section 4, but unlike the latter section is provided with a double offset core member to increase the range ofutility of the mold. That is to say, this end section 5 includes a wall portion 13 carrying at one side of its'center the oppositely projecting similar ofi'set core members 14 and 15- whereby it may be readily reversed to shift the core members from one corner of the boX to another.

In the assembly shown in'Figs. 1, 2 and 3 of the drawings it will'be observed that the interior shape of the mold is of substantially Z-shaped formation, and if desired a center core C of suitable shape may be placed within the same to make a hollow block, and, with the mold assembled as shown it will be seen that any desired number of blocks may be formed of this shape, the mold, of course, resting upon a suitable support or base which constitutes the bottom of the mold. After the molding material has set the-side walls may be slightly eased by loosening the clamping bars 10 to effect the removal of the block.

When it is desired to form a block of the shape shown in Fig. 7 of the drawings, that is, a substantially T-shaped block, it is only necessary to let the end section 4 remain in the same position as it is in Fig. 1, while the end section 5 is reversed from the position that it occupied in the latter figure to that shown in Fig. 4. Thus, the reversing of the end section 5 has the effect of placing the core member 14 on the outside of the mold while the oppositely projecting corev member 15 is disposed within the interior of the mold and occupies a corner thereof opposite to that occupied by the core member 14 when the end section 5. is in the position shown in Fig. 1. Accordingly, it will be observed from the arrangement shown in Fig. 4 that the interior of the mold is provided'with corner core members both located on the same side of the longitudinal center of the mold, to thus provide a substantially T- shaped interior. Also, as shown, a suitable central core member C may be employed.

In forming the type of block shown in Fig. 8 of the drawings, the mold assembly of Fig. 5 is utilized. As will be observed from this figure the end section 5 may be left in the same position as it was in Fig. 4, while the end section 4 is reversed from the posi- .will constitute a smooth surface for forming a flat end face on the block. It will further be apparent that with the end section 4 arranged as shown in Fig. 5, the section 5 be reversed,whereby it will occupy the same relative position it did in Fig. 1, thus forming the shoulder on this type of block on the opposite corner, which may be desirable to suit certain requirements. In forming this type of block, as in the other types, a suitable center core portion C may also be. employed.

As further illustrating the idea of providing a mold boX wherein the opposite end wall portions are provided with inwardly projecting abutments for forming opposing shoulders on the finished block, reference may be made to Figs. 9, 10, 11 and 12 of the drawings wherein a cast metal box is shown. In this form of the invention the mold box is designated generally as M, and consists generally of the opposite side wall portions 16-16 and the end walls 1717 each of which include the inwardly projecting core members 18 that cooperate with a central core portion 19 formed integral with the base 20 of the boX and adapted to produce the desired central opening in the finished block. Furthermore, as will be observed from Figs. 11 and 12, the base 20 is provided with a suitable integral projecting shoulder 21 which together with a removable edge strip 22 detachably clamped as at 23 to the upper edges of the mold, provides a groove orlrecess at the upper and lower edges of the finished block. This form of the invention, therefore provides for forming a substan tially Z-shaped block similar in general configuration to the type of block adapted to be turned out by the mold shown in Fig. 1.

From the foregoing it will be apparent that the present invention aims to provide a mold structure which is capable of producing a block having end portions adapted to interlock with other blocks turned out from the same mold, regardless of whether all of the blocks are of the same general shape or configuration, but in each case preserving the same type of interlocking end.

I claim 1. A molding apparatus comprising a box having side and end walls, a core member arranged within the boX and occupying the entire corner space between a side wall and an end wall and also spaced from the oppos1te side wall to provide a relatively restricted mold space, and a central core having its body portion arranged in spaced relation to the side walls and corner core member and provided with a relatively flat core projection located in said relatively restricted mold space formed between a corner core and side wall.

2. A molding apparatus comprising a box having end walls carrying shiftable core members adapted to project into the interior of the box at the inner corners thereof, and a central core arranged in spaced relation to the corner core members.

3. A molding apparatus comprising a box consisting of opposite side walls and reversible end sections carrying projecting core members, and means carried by the end sections for clamping the side Walls in position with reference thereto.

4. A molding apparatus comprising a box consisting of opposite side Walls and reversible core carrying end sections, and means for holding the side walls and end sections in assembled relation.

5. A molding apparatus comprising a box consisting of side walls, reversible end sections having offset core members adapted to occupy a corner of the interior of the box, and clamping bars carried by the end sections for holding the side walls in position with reference thereto.

6. A molding apparatus comprising a box consisting of side walls and opposite reversible end sections, one of said sections carrying a single offset core member and the other of said sections carrying a double core projection, and means for holding the side Walls and end sections in an assembled relation.

7. A molding apparatus comprising a box consisting of side walls and reversible end sections, one of said sections having a flat face and carrying on the opposite face an offset core member, and the other of said sec tions carrying oppositely projecting core members, and means for holding the side walls and end sections in assembled relation.

In testimony whereof I hereunto afiix my signature in the presence of two witnesses.

THOMAS R. WILLIAMS.

Witnesses:

JOHN A. FITHIAN, B. W. BRooKWAY.

Copies of this patent may be obtained for five cents each by addressing the Commissioner of Patents, Washington, D. G." 

